Car-coupling



(No Model.)

N. T. QUEVEDO. GAR GOUPLING.

No. 432,559. I, Pagented July 22, 1890.

UNITED STATES PATENT OEETCE.

NARCIS() T. QUEVEDO, OF IVOROESTER, MASSACI-IUSETTS.V

SPECIFICATION forming part of Letters Patent No. 432,559, dated. July 22, 1890.

Application filed April 3, 1890. Serial No. 346,392. V(No model.)

To ctZZ whom t may concern.-

Be it known that I, NARCISO T. QUEVEDO, a citizen of the Republic of Guatemala, residingin Worcester, in the county of Iorcester and State of Massachusetts, have invented a new and useful Improvement in Oar-Couplings, of which the following is a specification.

The nature of this device is fully described below and illustrated in the accompanying drawings, in which- Figure l is a longitudinal Vertical section of the ends of two cars (in this instance freightears) with my coupling applied andA shown in elevation. Portions of these cars are represented as broken out. Fig. 2 is a plan view of the coupling in the position assumed when the cars are united or coupled together. Fig. is a plan view of the coupling of one carin the position assumed when the car is being uncoupled. Fig. 4 is a diagram showing the method by which the shape of the coupling is determined.

A A represent ordinary cars, and B B the platforms thereof.

C O are the beams secured to the under side of the platforms, and D D are links or jaws pivoted at (l to said beams and held normally with their rear ends apart by means of springs E of any desired shape. These jaws decrease gradually in width, as shown, toward their rear ends D', and increase toward their front ends until the shoulders D are reached. Frein these points the necks D" are formed by havin g their opposite edges of the shape of reverse cycloid arcs, as shown, and the heads D grow abruptly larger and are formed in the shape of reverse cycloid arcs, so that the cycloids constituting the shape of each head fit exactly into the cycloids constituting the shape of the necks, as shown in Fig. 2.

II II are cams, one of which is situated over the rear portions of the jaws or links attached to one car, said cams being rigidly secured to vertical shafts I, capable of being rotated by hand-wheels I or other suitable device. Each of these cams is provided with twocurved slots Il', into which extend pins or rollers K, secured to the rear portions D of the jaws D. l

It will readily be seen that by rotating the shafts I, and hence the cams II, the rear ends of the jaws are forced toward each other, as shown in Fig. 3, while by releasing these shafts the jaws are instantly carried into a substantially parallel position by means of the springs E, said jaws turning of course upon their pivots d. Then two cars provided with my couplers come together, therefore, the heads D ofthe coupler of one car are pressed apart by the heads of the coupler of the other ear until the heads of the jaws of each coupler lie next the necks of the jaws of the other coupler, perfectly fitting therein by means of the reverse cycloid arcs above mentioned. Thus a solid and secure automatic coupler is provided, the uncoupling being accomplished, as above described, by means of the shafts I.

I do not confine myself to the exact means shown for rotating the shafts I, as any suitable mechanical means may be employed for rotating such shafts. Inthe drawings the device is shown as applied to freight-cars.' When the coupling is applied to passengercars, suitable gear would be employed for operating the shaft from a point on the platform at one side of it.

Suitable stop-pins may be arranged at g to limit the outward movement of the rear portions of the jaws.

Having thus fully described my invention, what I claim, and desire to sec-ure by Letters Patent, is-

l. In a car-coupling, the jaws or links D, pivotally secured at d to the car, each jaw or link tapering toward its rear end D', provided with the shoulders D the neck D", and head D, said neck and head being formed in the shape of double reverse equal cycloid curves or arcs, substantially as described.

2. In a car-coupling, in combination, the jaws or links D, pivotally secured at CZl to the car, each jaw or link tapering toward its rear end D', provided with the shoulders D, the neck D", and head D, said neck and head being formed in the shape of double reversed equal cycloid curves or arcs, the cam II, provided with the curved slots II', engaging said jaws by means of the pins K, the shaft,I, and springs for holding the rear ends of the jaws normally apart, all constructed and arranged substantially as set forth.

NARCIS@ T. QUEVEDO.

Witnesses:

HENRY W.AWILLIAMs, J. M. HARTNETT.

IOO 

